Such a doctrine is a doctrine of puritanism—or purism, which is worse.
The origin of this terminology seems to me to lie in a bit of purism.
The simplicity and purism of the tea-room resulted from emulation of the Zen monastery.
The third party took the name of Peter, or Cephas, as in their Hebrew purism they preferred to call him.
But this was not so much a matter of purism, ...